Update to ubuntu:jammy and clang-11

tools/docker-pugs.sh

@@ -35,7 +35,7 @@ mkdir -p ${DOCKERFILE_DIR}
 DOCKERFILE="${DOCKERFILE_DIR}/Dockerfile"
 
 cat > ${DOCKERFILE} <<EOF
-FROM ubuntu:focal
+FROM ubuntu:jammy
 
 ARG DEBIAN_FRONTEND=noninteractive
 ENV USER="${USER}" USER_ID="${USER_ID}" USER_GID="${USER_GID}" HOSTNAME="${DOCKER_HOSTNAME}"
@@ -46,7 +46,7 @@ RUN useradd --uid "${USER_ID}" --gid "${USER_GID}" --create-home --shell /bin/ba
 
 RUN apt-get update && apt-get -y upgrade && apt-get -y remove g++ gcc && apt-get -y install apt-utils gnupg gnupg2 gnupg1 wget cmake git make lcov bc pkg-config sudo doxygen
 
-RUN apt-get -y install clang-10 clang-format-10
+RUN apt-get -y install clang-11 clang-format-11
 
 RUN apt-get -y install libparmetis-dev petsc-dev slepc-dev
 RUN apt-get clean
@@ -54,9 +54,9 @@ RUN apt-get clean
 RUN rm /usr/bin/cc
 RUN echo "${USER} ALL=(ALL:ALL) NOPASSWD:ALL" > "/etc/sudoers.d/${USER}"
 
-RUN ln -s /usr/bin/clang-format-10 /usr/bin/clang-format
+RUN ln -s /usr/bin/clang-format-11 /usr/bin/clang-format
 
-ENV CC="clang-10" CXX="clang++-10"
+ENV CC="clang-11" CXX="clang++-11"
 
 EOF